sheltered back reef Stylophora affinis community, and sheltered reef lagoon Antillia bilobata community of coral. The fourth was during the maximum development of the Myakka Lagoon System estuary and included the mudflat mangrove forests of the Pyrazisinus scalinus community, and the shallow and muddy lagoon clam beds of the Mulinia sapotilla community. Later the shallow lagoon mussel shoals of the Perna conradiana community and shallow lagoon Chama emmonsii community. The Kissimmee Embayment contained the shallow mangrove forests and mudflat Pyrazisinus kissimmeesis community of sea snails and sand flats and turtle grass of the Siphocypraea kissimmeesis community. References Petuch, Edward J. (December 29, 2003). Cenozoic Seas: The View from Eastern North America, CRC Press; 1st edition. Geology of Florida Natural history of Florida Everglades Atolls